Summarize the provided text: The Great Wall of China, built between the 7th century BC and the 16th century, stretches over 13,000 miles across northern China. Originally constructed to protect Chinese states and empires from nomadic groups, it is one of the most significant architectural feats in history. Much of the existing wall dates from the Ming Dynasty (1368–1644).
Summarize the provided text: The Great Wall of China, built between the 7th century BC and the 16th century, stretches over 13,000 miles across northern China. Originally constructed to protect Chinese states and empires from nomadic groups, it is one of the most significant architectural feats in history. Much of the existing wall dates from the Ming Dynasty (1368–1644).
user
The Great Wall of China, spanning over 13,000 miles, was built from the 7th century BC to the 16th century to protect against nomadic invasions. Most of the current structure dates back to the Ming Dynasty.
assistant
Generate a series of (instruction, response) pairs that are similar in context and structure to the example provided below. Each pair should consist of a concise instruction followed by an appropriate, detailed response. The instruction should pose a clear task or question, while the response should provide a comprehensive answer or solution that could be understood by someone with a basic understanding of the subject.

Example pair: 
Instruction: Create a short summary of the text found below.

Grigori Rasputin, in full Grigori Yefimovich Rasputin, Grigori also spelled Grigory, original name Grigori Yefimovich Novykh, (born January 22 [January 10, Old Style], 1869, Pokrovskoye, near Tyumen, Siberia, Russian Empire—died December 30 [December 17, Old Style], 1916, Petrograd [now St. Petersburg, Russia]), Siberian peasant and mystic whose ability to improve the condition of Aleksey Nikolayevich, the hemophiliac heir to the Russian throne, made him an influential favourite at the court of Emperor Nicholas II and Empress Alexandra.
Response: Grigori Rasputin (1869-1916) was born in what is now St. Petersburg, Russia. He was a Siberian mystic and peasant whose improvement of Aleksey Nikolayevich's hemophilia earned him favor at Emperor Nicholas II's court.

Your task is to generate more pairs that maintain this level of clarity and detail. The topic is Summarization. Write a long text of instruction by yourself, then summarize the given instruction in a response. Ensure that the responses are informative and accurate, suitable for an educational context. 

Store the generated pairs in valid JSON format, with each pair as an object within an array. Each object should have two key-value pairs: "instruction" and "response". For instance: 

{"contents": [{"instruction": "text", "response": "text"}, {"instruction": "text", "response": "text"}, ...]} 

Remember to maintain consistency in the format and ensure the generated pairs are diverse and cover a broad range of subjects. You must return the response in the asked format and you must not add any additional text in your response.
